Nut-lock.



W. KLOTZ.

NUT LOCK. APPLICATION FILED Mn- 7. 1914.

1,160,905. Patented Nov. 16, 1915.

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WIL IAM xLorz, or woanniv, ILLIivoIs.

NUT-LOCK.

menses.

, Specification of Letters Patent.

Patented'Nov. 16, 1915.

Application filed January 7, 1914. Serial No. 819,909.

My invention relates to nut locks and more particularly .to a device :for positively locking the nut upon the bolt.

The primary object of'my' invention i-sto provide an improved locking means on the nut for preventing rotation of the same upon the bolt.

Another object of my invention istoprovide a novel means for removably holding the locking member \on the nut in engagement with the bolt.

A further object of my invention is to providea device which is simple in construc tion, efficient in operation and onewhichioan be manufactured and put uponthe market at a minimum cost. f 1

Other objects as well as the nature characteristic features 'a ndscope of-my invention will be more readily understood from the following description taken in connection with the accompanying drawings and pointed out in the claims.

In the drawings :Figure 1 is a top plan view of my invention showing the locking member in locked position; Fig. 2 is a top plan view of the same showing the locking member in unlocked position; Fig. 3 is a transverse sectional view of my invention taken on line 33 of Fig. 1; Fig. 4 is a perspective view of the locking member; and, Fig. 5 is a perspective view of the keeper.

Referring more particularly to the drawings in which reference numerals designate corresponding parts throughout the different views, the numeral 1 represents the outer screw threaded end of an ordinary bolt having a plurality of longitudinally extending notches 2 arranged in uniform spaced rela tion on the outer surface thereof.

Screw threaded on-the bolt 1 is a nut 3, provided on its upper face with a diagonally extending recess 4, the inner end 5 of which lies at right angles to the longitudinal axis of the bolt 1, thereby causing the same to lie ffush with the radial faces 6 of the notches 2 and the inner side 7 of which is adapted to lie flush with the sloping faces Sof the shocks or the like,

notches 2 when in locked position. The bot tom of the recess is provided approximately intermediate its ends with an arcuate depressed portion 9 and the sides of the recess diverge slightly from a point opposite the depressed portion 9. vPivotally and loosely mounted in the recess at by means of a pivot 10, is a locking member 11 which in this instance consists essentially of a metallic strip having an apertured ear 12 on one of its marginal edges for engagement with the pin 10, and the depressed portion :9, and has its inner end 13 bent at an angle substantially obtuse to the body thereof. Theextreme inner end of the locking member is beveled as at 14, and is adapted for biting engagement with the radial faces of the notches. V

For the purpose of removably holding the locking member in engagement with the notches 2, I have provided a keeper 15 which is pivotally mounted upon the pin 10, be.- tween the outer side ofthe recess and the locking member, this keeper being pivoted at a point substantially adjacentthe depressed P01131011 9. In this instance the keeper 15 consists essentially of a key tapering as at 16 toward its inner end, which end is provided with an opening 17 for engagement with the pin 10. In order to prevent the keeper 15 from becoming accidentally disengaged from the inner end of the recess by I have punched an indentation 18 on the inner longitudinal edge of the locking member.

The operation of my device is as follows:

The nut 3 is threaded on the bolt 1 to the desired position and until the inner end of the recess registers with one of the notches. The keeper is now moved on its pivot and pressed into wedging engagement with the innerend of the locking member, which end is beveled and bites the straight face 6 of the notch 2. After the above operation, the indentation 18 is formed in the outer marginal edge of the locking member by directing a blow thereagainst with a metal punch of any suitable character. To remove the nut, all that is necessary is to remove the indentation 18 in the locking member and release the same by swinging the keeper to the opposite end of the recess.

It will be obvious to those skilled in the art to which this invention relates that her in engagement With one of said notches.

from a point intermediate its ends,

modifications may be made in detail Without pivotally and loosely mounted in said recess, a and cam means Llocking member in engagement with one of for releasably holding said said notches.

2.1 In combination with a bolt having a plurality oflongitudinal notches, of a nut provided With a recess, a locking member pivotally mounted in said recess, the inner nd of said locking" member bent at a substantial obtuse angle to its body, and a keeper pivotally' mounted for 'releasably holding the inner end of said locking mem- 3. In combinationwvith a bolt having a plurality of longitudinal notches, of a nut provided With a diagonally extending recess,

the sides of said recessdiverging slightly a look ing member pivotally mounted in said recess the said locking member having its inner end arranged at an angle substantially obtuse' to the body thereof, and a tapering Wedge member pivotally mounted at its thin end between said Copies of this patentmay be obtained for in said recess, said locking member and the outer side of said recess and adapted to removably hold the inner end of said look ing member in engagement With oneof said notches,

plurality of longitudinal notches, one of the faces of said notches being straight and the other of the faces sloped, of a nut provided 4.111 combination With'a bolt having a with a diagonally extending recess, the inner end of said recess extending radially to lie flush With the said bolt-and adapted to the lower side straight faces of said notches,

' of said recess adapted to lie flush With the sloping faces of said notches, said recess having its sides diverglng from a point 1ntermediate 1ts ends, a

locking member having the inner end thereof arranged at a substantial obtuse angle of the body thereof, theeX- treme inner end ofv said member being beveled, and a tapering wedge member pivotally transverse pin in said recess, a locking member pivotally mounted mounted at its thin end on said pin between said locking member and the outer side of said recess adapted to removably hold the beveled end of sald locking member in engagement with the straight face andone of said notches. v V r V In testimony whereof I afliX my signature in presence oftwo Witnesses.

' WILLIAM KLOTZ.

Witnesses .C. GODFREY, WALL GODFREY.

fivecents each, by addressing the "Commissioner of latents Washington, D. G. 

